2229545 has 8 divisors (see below), whose sum is σ = 2703624. Its totient is φ = 1764864.

The previous prime is 2229541. The next prime is 2229547. The reversal of 2229545 is 5459222.

2229545 = 101² + 102² + ... + 197².

It can be written as a sum of positive squares in 4 ways, for example, as 3481 + 2226064 = 59^2 + 1492^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2229545 - 2² = 2229541 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2229541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (337953).

2^2229545 is an apocalyptic number.

It is an amenable number.

2229545 is a deficient number, since it is larger than the sum of its proper divisors (474079).

2229545 is an equidigital number, since it uses as much as digits as its factorization.

2229545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699.

The product of its digits is 7200, while the sum is 29.

The square root of 2229545 is about 1493.1660992669. The cubic root of 2229545 is about 130.6387694100.

The spelling of 2229545 in words is "two million, two hundred twenty-nine thousand, five hundred forty-five".